Impact of Capsular Tension Ring on Intraocular Lens Position in Retinitis Pigmentosa Cataract Patients

Sponsor
Zhongshan Ophthalmic Center, Sun Yat-sen University
Study ID
NCT07126470
Status
Recruiting
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Conditions

  • Cataract
  • Retinitis Pigmentosa (RP)

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • CTR implantation — PROCEDURE
    Device: CTR (275001G, OPHTEC BV, Netherlands) All patients undergo uneventful phacoemulsification by a 2.2 mm temporal transparent corneal incision using Centurion Vision System (Alcon Laboratories, Fort Worth, TX, USA). After the nucleus and cortex are removed, a capsular tension ring is implanted in the capsular bag and then IOL (J\&J Tecnis DCB00) is implanted.

Study Details

This is a self-controlled randomized clinical trial to investigate the effect of capsular tension ring (CTR) implantation on intraocular lens (IOL) position in cataract patients with retinitis pigmentosa(RP). Each patient will receive CTR implantation in one eye, with the fellow eye serving as control. Postoperative outcomes, including visual acuity, IOL position, and postoperative complications will be compared between eyes.

Key Dates

First listed
Aug 17, 2025
Start date
Aug 25, 2025
Status verified
Aug 2025
Primary completion
Aug 31, 2027
Completion
Aug 31, 2027

Study Design

Enrollment
88 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT

Arms

  • Experimental: Treatment Group: IOL Plus CTR implantation
    Patients will undergo phacoemulsification combined with IOL and CTR implantation
  • No Intervention: Control Group: IOL implantation Only
    Patients will undergo phacoemulsification combined with IOL implantation. All patients undergo uneventful phacoemulsification by a 2.2 mm temporal transparent corneal incision using Centurion Vision System (Alcon Laboratories, Fort Worth, TX, USA). After the nucleus and cortex are removed, IOL (J\&J Tecnis DCB00) is implanted in the capsular bag.

Primary Outcome Measure

IOL dencentration [ Time Frame: 3 months after surgery ]

Central Contacts

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